Question: Name: Date: QC: Substitut Solve each system of equations method. No graphing. Ex) x=-2y 3x+4y--8 Step 1 The variable x is already by itself.
Name: Date: QC: Substitut Solve each system of equations method. No graphing. Ex) x=-2y 3x+4y--8 Step 1 The variable x is already by itself. Step 3x+4y--8 Step 3 Step 4 x=-2y x=-2y 1) Solve one This is section. 3(-2y)+4y--8 x=-2(4) -6y+4y--8 x=-8 (-8)--2(4) -8--80 -2y=-8 -2-2 (-8, 4) 3x+4y--8 y=4 3(-8)+4(4)=-8 -24+16=-8 -8=-8 1. 2. 2) Substitute equation a 3) Once you plug this equations 4) Check yo both equ y=5 -3x+4y=8 [x=y-4 -2x+3y
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